Paul Guo created HAWQ-1214: ------------------------------ Summary: Remove resource_parameters in calculate_planner_segment_num() Key: HAWQ-1214 URL: https://issues.apache.org/jira/browse/HAWQ-1214 Project: Apache HAWQ Issue Type: Bug Reporter: Paul Guo Assignee: Lei Chang
The reasons are: 1) It is not used anymore. 2) Have seen crash due to this. The scenario is that: The datalocality memory context on which resource_parameters is palloc-ed is reset before calculate_planner_segment_num() finishes, thus later access to resource_parameters could lead to crash or wrong results. A code path example which could lead to segfault is: ProcessUtility()->PerformCursorOpen()->_copyPlannedStmt()->_copyQueryResourceParameters() -- This message was sent by Atlassian JIRA (v6.3.4#6332)